Still, Pelosi said she didn't like the language and wouldn't use it.
"I'm absolutely convinced that impeachment is not dead", Rep. Al Green of Texas, a major impeachment backer, said when asked about Tlaib's comments.
Rep. Ruben Gallego (D-Ariz.) was straightforward in rebuking Tlaib's comment, saying, "Everyone should stop this impeachment talk until Mueller comes out with his report".
As the chamber's new speaker, the 78-year-old Ms Pelosi is challenged with keeping President Trump - as well as the more radical elements of her own party - in check.
"How do you impeach a president who has won perhaps the greatest election of all time?"
The video was originally posted on social media by Jon Levine of The Wrap, though someone else was credited for filming the speech.
Hopman Cup: Federer’s Swiss roll Serena in battle for the ages
The pair posed together for a selfie after the match. "It was definitely a relief", Williams said of the result. There are two groups of four and nations play two singles and a mixed doubles match.
Tlaib took her oath on a two-volume Quran that belonged to one of the founding fathers of America, Thomas Jefferson and wore a traditional Palestinian "Thobe" dress to the ceremony.
In interviews with Politico, several of Tlaib's fellow Democrats were critical as well.
"That action should not stand". Freshman Rep. Alexandria Ocasio-Cortez of NY told CNN impeachment was "an issue that she's passionate about".
Additionally, House Minority Whip Steve Scalise (R-La.) called Tlaib's remark a "real test" for Pelosi in how she responds, adding that "it will continue happening if she doesn't address the problem".
Pelosi has been cautious about whether her new Democratic majority would ever impeach Trump, but at least two of her members are ready to move forward. They are unlikely to get a vote on the House floor, at least for now.
Trump says his campaign did not collude with Russian Federation during the 2016 election, which is a focus of special counsel Robert Mueller's investigation.
New York's Ocasio-Cortez, who previous year unseated the fourth highest-ranking House Democrat in a shock primary, told the CBS show "60 Minutes" that she wants United States tax rates to return to "as high as 60 or 70 percent" for the wealthiest Americans, in order to pay for an ambitious plan to fight climate change.